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How to delete a file after checking whether it exists

... The test shouldn't be used in place of exception handling tho, but rather in conduction with it. Any number of scenarios can result in the exists check returning true and Delete throwing. – Josh Jun 23 '11 at 4:09 ...
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Java: Equivalent of Python's range(int, int)?

... From Java 8, IntStream and LongStream have methods range and rangeClosed. – Jose Manuel Gomez Alvarez Dec 19 '18 at 22:51 a...
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How to center a (background) image within a div?

... If you want the entire div to be filled with the image and no extra space you should use background-size: cover; If you want the entire image to show without any part of the image being cut off or stretched you want to use background-size: contain; – Zlerp...
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Regex for numbers only

... Use the beginning and end anchors. Regex regex = new Regex(@"^\d$"); Use "^\d+$" if you need to match more than one digit. Note that "\d" will match [0-9] and other digit characters like the Eastern Arabic numerals ٠١٢٣٤٥٦٧٨٩. ...
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Setting mime type for excel document

... I believe the standard MIME type for Excel files is application/vnd.ms-excel. Regarding the name of the document, you should set the following header in the response: header('Content-Disposition: attachment; filename="name_of_excel_file.x...
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How can I reorder a list? [closed]

... I just could not understand the syntax until I realized is a pairwise simultaneous assignment. ´:-) – loved.by.Jesus Apr 27 at 9:56 ...
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How to reset Django admin password?

I am using Django (version 1.3) and have forgotten both admin username and password. How to reset both? 21 Answers ...
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Display name of the current file in vim?

...e top bar of the terminal? (or terminator) or somewhere without type a command. – eMarine Sep 22 '14 at 8:34 ...
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Changing cursor to waiting in javascript/jquery

... In your jQuery use: $("body").css("cursor", "progress"); and then back to normal again $("body").css("cursor", "default"); share | improve this answer | f...
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Paused in debugger in chrome?

...s are always paused in the debugger even if there are no break points set, and if the the pause is un-paused, it again pauses itself. ...